Malicious PDF — malware analysis report

Static analysis result for SHA-256 12898d82980fe7f5…

MALICIOUS

PDF

81.2 KB Created: 2021-07-06 22:53:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 702e5c83a23ff6d936a9a3db94d0d4bf SHA-1: ca65d4936d5fd239c681c467a41537e6b8e829a4 SHA-256: 12898d82980fe7f5faf8174eca5cc1fffcefc54324ff29dfbcfa271aa77bdce1
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains embedded JavaScript and numerous external URIs pointing to compromised WordPress installations and disposable hosting. The primary goal appears to be directing users to phishing or malicious content, as indicated by the link farm heuristic and the ClamAV detection. The embedded JavaScript likely facilitates the redirection or execution of further malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://coretry.ru/uplcv?utm_term=accrual+entry+for+salary PDF link annotation
    • https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/ba7d1b3311b89074476c50f924cd0e9d/6620852784.pdfIn PDF document text
    • http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/fidosavetososif.pdfIn PDF document text
    • http://www.annaleehuber.com/content_files/file/lajemedegugawebegam.pdfIn PDF document text
    • http://vizugy.hu/uploads/files/xutusaxizamewut.pdfIn PDF document text
    • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cbf70ed031---vitogosajivun.pdfIn PDF document text
    • http://studiopignotti.it/userfiles/files/jugorokufarorixalanubituj.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af58818f3ae---vikiropexevumozusid.pdfIn PDF document text
    • http://mahlkoenig.nl/app/webroot/files/userfiles/files/lidorokajusiluwegegi.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a929e08f645---24725087429.pdfIn PDF document text
    • http://tgtech-auto.com/userfiles/file/30683136801.pdfIn PDF document text
    • http://nwatchonline.net/userfiles/file/pepaxisarobok.pdfIn PDF document text
    • http://banhangcongnghe.com/upload/FCK/file/60360893244.pdfIn PDF document text
    • https://fishboat.hr/files/63083452567.pdfIn PDF document text
    • http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/95033318830.pdfIn PDF document text
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/30bcc2bd3719b587bd83b288ce5fb6a5/70069047424.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d2ee40fde2---lopobobasomizolamu.pdfIn PDF document text
    • https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/7f81ca7bed912bb2aaa6dee8339863c6/winibimubaselanaxolobox.pdfIn PDF document text
    • http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16081da4649663---74085236192.pdfIn PDF document text
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/j9eg7qdoc8vcns6mq63mktlib2/tudowigizuzuwapavepedi.pdfIn PDF document text
    • https://wrd13.com/force/file/menejewejurirozized.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f80a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF80A 10432 bytes
SHA-256: 17bbb3701024ba1bcd83e4a13d2f3221813d5e11c58b28b406a3bf1728e1bc1f
font_02_sfnt_off00010fef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FEF 15620 bytes
SHA-256: 40900a095a6bb4e1387ee8398e0d377e4e643725ca4a373f08ccd6c15a9b369f

Open this report in the interactive analyzer, or submit your own file for analysis.